Inorganic pigments in the industry

Almost all inorganic pigments are compounds and they are usually complex mixtures, , in which metal is a part of the molecule. As the global economy recovers, building materials, paint, plastic, ink and other industries have seen rapid growth, the demand of inorganic pigments is increasing rapidly. Along with the rapid development of coatings industry, as one of its main raw materials of inorganic pigments have enjoyed great development, such as titanium dioxide and iron oxide take a large percentage.

Research report about China coatings market and investment strategy in recent years, the pigments manufacturers‘ orders increased, price fluctuations is frequent, local supply is tight. China as a producer of inorganic pigments, the total annual production of titanium dioxide, iron oxides, chromium pigment lead the highest in the world. It is understood green inorganic pigments showed a growth trend of the volume and price in 2012, as well as in 2013. For this reason, inorganic pigments enterprise should advance the core competitiveness bases on scientific and technological innovation for the brand to make new contributions to environmental change.

Inorganic pigments are non-ferrous oxide or insoluble metal salts of some metals. Inorganic pigments are divided into natural inorganic and inorganic pigments, natural inorganic pigments are mineral pigments. Humans have a long history in using inorganic pigments. Smoke black, chalk, clay, natural iron oxide has been used as pigments since prehistoric times. Around 200 BC, China refined vermilion (HgS) as pigments. 1704 Germany Diesbach invented manufacturing method of color pigment Prussian blue (a blue pigment, main ingredient Fe4 "Fe (CN) 6" 3 • xH2O). 1809 France L.-N. made chrome Vauclin, 1831 France I.B. JI May built a plant near Lyon to manufacture Ultramarine, 1874 the United Kingdom Austria's zinc company-owned Widnes factories manufactured zinc barium White. Titanium pigments (including TiO225%) in 1916 and pure titanium dioxide (Titania) in 1923 put into production, which lead the pigment production levels to advance one step further.

Tendency of research and development of new inorganic pigments in recent years are:
a. Develop complex pigments, such as light blue (CoO • Cr2O3• Al2O3), titanium-nickel yellow (TiO2 • NiO• Sb2O3) and so on. Add oxides of chromium, cobalt, iron and zinc to the titanate of nickel and antimony can make low toxicity to nontoxic pigments, and the pigments are yellow, green, blue, Brown with high temperature resistance, durability, bright and excellent performance. It can be used for building materials, paint, plastics coloring, etc.
b. Develop surface treatment technology of pigment particle, form a layer of color film on the inorganic compounds or organic pigment particle surface. It can change the pigment particle surface properties, improve light resistance, heat resistance, wetting properties and expand applications and improve value.
c. Manufacture machining pigments, users can use directly and save a lot of abrasive costs. Click here to get more!